var main_system = getItemValueAsString("ztxt_mc"); //系统名_子系统名（主系统）
var cooperate_system = getItemValueAsString("phxt_mc"); //系统名_子系统名;...（配合系统）
if (null != cooperate_system) {
    cooperate_system = cooperate_system.replace(";", "','");
} else {
    cooperate_system = "";
}
var params = "";
params = main_system + "','" + cooperate_system;
var domainid = getDomainid();
var sql = "select '" + domainid + "' AS domainid, group_concat(distinct item_system_type separator ';') as item_pt from tlk_system_name " +
    " where " +
    " ( " +
    " case when (item_app_name_son is null or item_app_name_son = '') " +
    " then item_app_name " +
    " else concat(item_app_name, '_', item_app_name_son) end " +
    " ) in ('" + params + "')";
var opts = "";
var result = findBySQL(sql);
opts = ";" + result.getItemValueAsString("pt");
opts;